The Beryllium-7 (Be-7) concentrations in the atmosphere of Kuwait, as found
by gamma-ray measurements for 243 air filters collected over a five-year p
eriod, produced variable values ranging from 0.2 to 14.9 mBq/m(3) with a be
havior pattern which has oscillatory characteristics, with increased activi
ties occurring in the summer months of each year. The annual levels of occu
rrence of 7Be were found to be correlate with the cyclic pattern resulting
from the eleven-year temporal variations associated with the solar activity
. (C) 2001 Elsevier Science Ltd. All rights reserved.